Means or device for investigating, correcting, and developing the power of human vision



y 1936- R. B. SIMPKINS 2,049,327

MEANS OR DEVICE FOR INVESTIGATING, CORRECTING, 1

AND DEVELOPING THE POWER OF HUMAN VISION Filed Sept. 4, 1954 INVENTOH atented July 28, 1936 res PATNT oFIcE 2,049,327 Ii/mANS 0R7 DEVICE FOR INVESTIGATING,

CORRECTING,

POWER OF HUMAN VI DEVELOPING THE SION Robert Brooks Simpkins, Edgbaston,

Birmingha Application In, England September 4, 1934, Serial In Great Britain September 6, 1933 2 Claims. (01. 8820) This invention has reference to improvements in or relating to means or devices for investigating, correcting and/or developing the power of human vision.

to which the abnormalities if Certain of the appliances thereof and co-axial with the centre of the aperture in the annulus, said disc being mounted on one end of a screw rotatably mounted in a suitable support.

A convenient embodiment of the invention will now be described with reference to the accompanying drawing, wherein:-

Figure 1 represents the said appliance in side elevation.

Figure 2 is a front elevation of the same, and

Figure 3 a sectional plan, the section being plane indicated by the dottedline 3-3, Figure 1.

According to this embodiment the appliance comprises an annulus or apertured disc 4 fixed to 5 carried by the depending said handle or pper part with is in true alignment with the central aperture i of the annulus or disc 4.

The said screw box 5 or exercises to be performed by the use of the appliance.

The dimension of the aperture t in the annulus eye separately The annulus or apertured disc 4 may be provided on the to describe the tests and exercises in which the appliance may be employed.

What I claim is:-- V V 1. An appliance to be employed in investigat- '5 ing, correcting and/or developing the power or ability'of central fixation of theeyes comprising a stem, a screw box atthe upper end of said stem, a rod screw'threaded in said box disposed transversely of the stem, a disc carried by said 10 stem, a bracket extending laterally from said stem below said disc, and a disc carried by said bracket disposedin front of the first disc, the second disc having an aperture, and a focal means on the first disc in axial alignment with 15' the said aperture. 7

2. An appliance to be employed in investigatsecond disc having V 7 means on the first disc in axial alignment with ing, correcting and/or developing thepoweror V ability of central fixation of the eyes compris-' ing a stem, a screw box at the upper end of said 7 stem, a rod screw threaded in said box disposed transversely of the vstem, a' disc carried by'said 5 stem, a bracket extending laterally from said stem'belowsaid disc, and a disc carried'by said bracket disposed in front of the first disc, the

an aperture, and a focal the said aperture, said aperture being open and unobstructed, the appliance being open intermediate the discs, and markings on the second disc" about said aperture. 7

v r 15 ROBERT BROOKS sin/reruns. 

